Glucosinolates are sulfur-containing compounds found in brassica cruciferous vegetables.
Glucosinolates Rich Foods
Arugula Bok choy Broccoli Brussels sprouts Cabbage Cauliflower Collard greens Horseradish Kale Radishes Rutabaga Turnips Watercress Wasabi
Mustard Oils
The pungency taste of those plants is due to mustard oils produced from glucosinolates. This flavour is released when the plant material is chewed, cut, or otherwise damaged.